package com.twelvet.framework.log.aspect;


import com.twelvet.api.mq.feign.RemoteMQSysOperationLogService;
import com.twelvet.api.system.domain.SysOperationLog;
import com.twelvet.framework.core.exception.TWTException;
import com.twelvet.framework.log.annotation.Log;
import com.twelvet.framework.log.enums.BusinessStatus;
import com.twelvet.framework.log.service.AsyncLogService;
import com.twelvet.framework.security.domain.LoginUser;
import com.twelvet.framework.security.utils.SecurityUtils;
import com.twelvet.framework.utils.JacksonUtils;
import com.twelvet.framework.utils.StringUtils;
import com.twelvet.framework.utils.$;
import com.twelvet.framework.utils.http.IpUtils;
import com.twelvet.framework.utils.http.ServletUtils;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpMethod;
import org.springframework.http.MediaType;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.HandlerMapping;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.lang.reflect.Method;
import java.util.Map;


/**
 * @author twelvet
 * @WebSite www.twelvet.cn
 * @Description: 操作日志记录处理
 */
@Aspect
@Component
public class LogAspect {
    private static final Logger log = LoggerFactory.getLogger(LogAspect.class);

    @Autowired
    private AsyncLogService asyncLogService;

    @Autowired
    private RemoteMQSysOperationLogService remoteMQSysOperationLogService;

    /**
     * 配置切入点
     */
    @Pointcut("@annotation(com.twelvet.framework.log.annotation.Log)")
    public void logPointCut() {
    }

    /**
     * 处理完请求后执行
     *
     * @param joinPoint 切点
     */
    @AfterReturning(pointcut = "logPointCut()", returning = "jsonResult")
    public void doAfterReturning(JoinPoint joinPoint, Object jsonResult) {
        handleLog(joinPoint, null, jsonResult);
    }

    /**
     * 拦截异常操作
     *
     * @param joinPoint 切点
     * @param e         异常
     */
    @AfterThrowing(value = "logPointCut()", throwing = "e")
    public void doAfterThrowing(JoinPoint joinPoint, Exception e) {
        handleLog(joinPoint, e, null);
    }

    protected void handleLog(final JoinPoint joinPoint, final Exception e, Object jsonResult) {
        try {
            // 获得注解
            Log controllerLog = getAnnotationLog(joinPoint);
            if (controllerLog == null) {
                return;
            }

            // 获取当前的用户
            LoginUser loginUser = SecurityUtils.getLoginUser();

            // *========数据库日志=========*//
            SysOperationLog operationLog = new SysOperationLog();
            operationLog.setStatus(BusinessStatus.SUCCESS.value());
            // 请求的地址
            String ip = IpUtils.getIpAddr(ServletUtils.getRequest());
            operationLog.setOperIp(ip);

            // 返回参数
            operationLog.setJsonResult(JacksonUtils.toJson(jsonResult));

            operationLog.setOperUrl(ServletUtils.getRequest().getRequestURI());
            if (loginUser != null) {
                operationLog.setOperName(loginUser.getUsername());
                operationLog.setDeptId(loginUser.getDeptId());
            }

            if (e != null) {
                operationLog.setStatus(BusinessStatus.FAIL.value());
                operationLog.setErrorMsg(StringUtils.substring(e.getMessage(), 0, 2000));
            }
            // 设置方法名称
            String className = joinPoint.getTarget().getClass().getName();
            String methodName = joinPoint.getSignature().getName();
            operationLog.setMethod(className + "." + methodName + "()");
            // 设置请求方式
            operationLog.setRequestMethod(ServletUtils.getRequest().getMethod());
            // 处理设置注解上的参数
            getControllerMethodDescription(joinPoint, controllerLog, operationLog);
            // 异步保存数据库
            asyncLogService.saveSysLog(operationLog);

            // MQ队列日志
            // remoteMQSysOperationLogService.sendSysLoginLog(operationLog);
        } catch (Exception exp) {
            // 记录本地异常日志
            log.error("==前置通知异常==");
            log.error("异常信息:{}", exp.getMessage());
            exp.printStackTrace();
        }
    }

    /**
     * 获取注解中对方法的描述信息 用于Controller层注解
     *
     * @param log          日志
     * @param operationLog 操作日志
     */
    public void getControllerMethodDescription(JoinPoint joinPoint, Log log, SysOperationLog operationLog) {
        // 设置action动作
        operationLog.setBusinessType(log.businessType().ordinal());
        // 设置标题
        operationLog.setService(log.service());
        // 设置操作人类别
        operationLog.setOperatorType(log.operatorType().ordinal());
        // 是否需要保存request，参数和值
        if (log.isSaveRequestData()) {
            // 获取参数的信息，传入到数据库中。
            setRequestValue(joinPoint, operationLog);
        }
    }

    /**
     * 获取请求的参数，放到log中
     *
     * @param operationLog 操作日志
     */
    private void setRequestValue(JoinPoint joinPoint, SysOperationLog operationLog) {
        String requestMethod = operationLog.getRequestMethod();
        if (HttpMethod.PUT.name().equals(requestMethod) || HttpMethod.POST.name().equals(requestMethod)) {
            String params;
            String contentType = ServletUtils.getRequest().getContentType();
            if (!$.isEmpty(contentType) && contentType.startsWith(MediaType.MULTIPART_FORM_DATA_VALUE)) {
                params = "FILE";
            } else {
                try {
                    params = argsArrayToString(joinPoint.getArgs());
                } catch (IOException e) {
                    throw new TWTException("参数拼装失败");
                }
            }

            operationLog.setOperParam(StringUtils.substring(params, 0, 2000));
        } else {
            Map<?, ?> paramsMap = (Map<?, ?>) ServletUtils.getRequest().getAttribute(HandlerMapping.URI_TEMPLATE_VARIABLES_ATTRIBUTE);
            operationLog.setOperParam(StringUtils.substring(paramsMap.toString(), 0, 1000));
        }
    }

    /**
     * 是否存在注解，如果存在就获取
     *
     * @param joinPoint JoinPoint
     * @return Log
     */
    private Log getAnnotationLog(JoinPoint joinPoint) {
        Signature signature = joinPoint.getSignature();
        MethodSignature methodSignature = (MethodSignature) signature;
        Method method = methodSignature.getMethod();

        if (method != null) {
            return method.getAnnotation(Log.class);
        }
        return null;
    }

    /**
     * 参数拼装
     */
    private String argsArrayToString(Object[] paramsArray) throws IOException {
        StringBuilder params = new StringBuilder();
        if (paramsArray != null && paramsArray.length > 0) {
            for (Object o : paramsArray) {
                if (!isFilterObject(o)) {
                    params.append(JacksonUtils.toJson(o)).append(" ");
                }
            }
        }
        return params.toString().trim();
    }

    /**
     * 判断是否需要过滤的对象。
     *
     * @param o 对象信息。
     * @return 如果是需要过滤的对象，则返回true；否则返回false。
     */
    public boolean isFilterObject(final Object o) {
        return o instanceof MultipartFile || o instanceof HttpServletRequest || o instanceof HttpServletResponse;
    }
}
